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org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException: Error setting null parameter. Most JDBC drivers require that the JdbcType must be specified for all nullable parameters. Cause: java.sql.SQLExcep ...
org.xml.sax.SAXParseException: Attribute "colunm" must be declared for element type "id".
提示很清楚，说没有这个 colunm 这个属性。 仔细的会发现 单词错了 应该是 column 。 踏码的
Mapped Statements collection does not contain value for com.penci.mapper.ISt
Mapped Statements collection does not contain value for后面是什么类什么方法之类的：
错误原因有几种： 自己仔细检查一下1、mapper.xml中没有加入namespace 2、mapper.xml中的方法和接口mapper的方法不对应 3、mapper.xml没有加入到mybatis-config.xml中(即总的配置文件)，例外：配置了mapper文件的包路径的除外 4、map ...
[code="java"]java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: Root WebApplicationContext: startup date [Tue Nov 26 14:12:06 CST 2013]; root of context hierarchy
细心的可以发现 是web 里的配置问题， <XX ...
2013-11-24 16:33:50 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [springmvc] in context with path [/spring_ssh] threw exception [Circular view path [list]: would dispatch back to the current handler URL [/spring_ssh/u/list] again. Check your ViewResolver setu ...